Engine Oils

Red Line Synthetic Oil
Engine Oils

Engine Oils


Engine Oils

Red Line's synthetic engine oils are designed to provide the highest protection, cleanliness and superior drain intervals with the lowest friction for your petrol, diesel, motorcycle or marine engine. We use the most stable components available and formulate our products for wear protection and friction reduction across a wide range of engine operating conditions.


Red Line's products are unique because they contain polyol ester base stocks, the only lubricants which can withstand the tremendous heat of modern jet engines.

These synthetics have a natural multigrade property, which allows our chemists to avoid bulking up an oil with unnecessary additive packages that hinder lubricity.



10W30 Synthetic Engine Oil
  • All-weather viscosity grade for passenger cars and light trucks
  • Popular in crate engines and high-performance V-8 engines
  • Thicker oil film at operating temperature than a petroleum 10W40
  • Recommended for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4

More info 10W30 Synthetic Engine Oil

10W40 Synthetic Engine Oil
  • Popular for medium and heavy-duty gasoline engines in light trucks
  • Best choice for high-performance engines that see street/strip or track activity
  • Great for engines with high oil temperatures
  • Thicker oil film at operating temperature than a petroleum 20W50
  • Recommended for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4

More info 10W40 Synthetic Engine Oil

10W60 Synthetic Engine Oil
  • Popular for newer BMW M-cars applications like E46 M3 and E60 M5
  • Recommended for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4

More info 10W60 Synthetic Engine Oil

15W40 Diesel Synthetic Engine Oil
  • Recommended for API CJ-4/CI-4 Plus/CI-4/CF/CH-4/CF-4
  • Popular for Light Duty trucks including Chevrolet Duramax, Dodge Cummins, Ford Power Stroke
  • Best choice in medium and heavy-duty diesel truck engines for maximum durability
  • Improved drain intervals provide excellent value for commercial fleet use
  • Also for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4 E7/E9

More info 15W40 Diesel Synthetic Engine Oil

15W50 Synthetic Engine Oil
  • Popular in turbocharged applications
  • For wider bearing clearances and racing engines that see occasional street use
  • 25% more viscosity than petroleum 20W-50s.
  • Not recommended for use in cold climates (-20C/-4°F for 15W50)
  • Recommended for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4

More info 15W50 Synthetic Engine Oil

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For more information regarding the full range of Red Line Oil products then don’t hesitate to get in touch today. Contact Us on +44 (0)2476 717100 or fill in our Contact Form.

For contact information regarding our UK and European Dealers then please see our Dealers page.

Contact Red Line for information on Engine Oils

Engine Oils
   Engine Oils
   Motorcycle Oils
   Race Engine Oils

Gear Oils
   Synthetic Gear Oil
   ShockProof™ Gear Oil
   Automatic Transmission Fluids

Coolant Additives
   Engine Coolant

Performance Fuel Additives
   Diesel Fuel Additives
   Petroleum Fuel Additives

Grease & Assembly Lube
   CV-2 Grease
   Assembly Lube
   Racing Power Steering Fluid

Suspension Fluids
   LikeWater Suspension Fluid
   ExtraLight Suspension Fluid
   LightWeight Suspension Fluid
   Medium Suspension Fluid
   HeavyWeight Suspension Fluid

Brake Fluid
   RL 600 Full Synthetic Brake Fluid